参数资料
型号: MCP4013T-503E/CH
厂商: Microchip Technology
文件页数: 36/54页
文件大小: 0K
描述: IC DGTL POT 50K 1CH SOT23-6
标准包装: 1
接片: 64
电阻(欧姆): 50k
电路数: 1
温度系数: 标准值 150 ppm/°C
存储器类型: 易失
接口: 2 线串行(芯片选择,增/减)
电源电压: 1.8 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: SOT-23-6
供应商设备封装: SOT-23-6
包装: 标准包装
产品目录页面: 674 (CN2011-ZH PDF)
其它名称: MCP4013T-503E/CHDKR
2006 Microchip Technology Inc.
DS21978C-page 41
MCP4011/2/3/4
6.3
Operational Characteristics
Understanding the operational characteristics of the
device’s resistor components is important to the system
design.
6.3.1
ACCURACY
6.3.1.1
Integral Non-Linearity (INL)
INL error for these devices is the maximum deviation
between an actual code transition point and its
corresponding ideal transition point after offset and
gain errors have been removed. These endpoints are
from 0x00 to 0x3F. Refer to Figure 6-5.
Positive INL means higher resistance than ideal.
Negative INL means lower resistance than ideal.
FIGURE 6-5:
INL Accuracy.
6.3.1.2
Differential Non-Linearity (DNL)
DNL error is the measure of variations in code widths
from the ideal code width. A DNL error of zero would
imply that every code is exactly 1 LSb wide.
FIGURE 6-6:
DNL Accuracy.
6.3.1.3
Ratiometric Temperature Coefficient
The ratiometric temperature coefficient quantifies the
error in the ratio RAW/RWB due to temperature drift.
This is typically the critical error when using a
potentiometer device (MCP4011 and MCP4013) in a
voltage divider configuration.
6.3.1.4
Absolute Temperature Coefficient
The absolute temperature coefficient quantifies the
error in the end-to-end resistance (nominal resistance
RAB) due to temperature drift. This is typically the
critical error when using a rheostat device (MCP4012
and MCP4014) in an adjustable resistor configuration.
111
110
101
100
011
010
001
000
Digital
Input
Code
Actual
Rransfer
Function
INL < 0
Ideal Transfer
Function
INL < 0
Digital Pot Output
111
110
101
100
011
010
001
000
Digital
Input
Code
Actual
Transfer
Function
Ideal Transfer
Function
Narrow Code < 1 LSb
Wide Code, > 1 LSb
Digital Pot Output
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